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UNITED STATES PATENT OFFICE.

WILLIAM W. HARDING, OF PHILADELPHIA, PENNSYLVANIA.

PERFORATING-RULE FOR PRINTERS.

Specification of Letters Patent No. 28,078, dated May 1, 1860.

To all whom it 'may concern:

Be it known that I, WILLIAM W. HARD- ING, of the city of Philadelphiaand State of Pennsylvania, have made a new and useful Improvement inMachinery for Perforating or Deeply Indenting Newspapers, Magazines,Pamphlets, &c., so that Their Folds May Easily be Torn; and I do herebydeclare the following to be a full, clear, and exact description of thesame, reference being had to the annexed drawings, making a part of thisspecification, in which- Figure l shows a view of my arrangement. Fig. 2shows the bar A A detached,

The nature of my invention consists in providing a bar A A which is of aheight a little greater than that of the type, with a series of sharppoints of anydesired shape. This bar is then placed in the form, (theteeth projecting a little above the surrounding type), at such va placeas it is desired the perforations should be in the paper. Vhen theimpression is taken these points. will perforate or deeply indent thepaper.

The object of this invention is to perforate a series of holes in thefolds of newspapers, pamphlets, books, magazines, etc., whereby they maybe easily separated.

Having thus described my improvement what I claim as my invention anddesire to secure by Letters Patent is- The combination of the bar AAprovided with a series of teeth, with the form so that when theimpression is taken these sharp points will perforate or deeply indentthe paper, substantially as herein set forth.

WM. W. HARDING.

Vitnesses:

J. GUNNIGHILD, M. V. B. KENNEY.

